In an innovative social media campaign, our Chicago office used Klout, a social media tool that measures an individual's ability to influence others in the world of social media for automaker Chevrolet's small car Sonic. We gave top Klout "influencers" the chance to drive the Chevy Sonic for the weekend, which was packaged as "Klout Perks" in five key cities. Race along with our campaign video and share you ...